Ace-high ~ first class, respected.
A hog-killin' time ~ a real good time. "We went to the New Year's Eve dance and had us a hog-killin' time."
A lick and a promise ~ to do haphazardly. "She just gave it a lick and a promise."
Bang-up ~ first rate. "They did a bang-up job."
Blowhard ~ braggart, bully.
Dinero ~ from the Spanish, a word for money.
Get a wiggle on ~ hurry.
Jig is up ~ scheme/game is over, exposed.
Rich ~ amusing, funny, improbable. "Oh, that's rich!"
Right as a trivet ~ right as rain, sound as a nut, stable.
Take the rag off ~ surpass, beat all. "Well, if that don't take the rag off the bush."
The Old States ~ back East.
The whole kit and caboodle ~ the entire thing.
Throw up the sponge ~ quit, give up, surrender.